# Apodex 1.1 vs Step 5 Preview

> Side-by-side benchmark comparison for Apodex 1.1 and Step 5 Preview across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/apodex-1-1-vs-step-5-preview
- Last updated: September 21, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Step 5 Preview if you want the stronger benchmark profile. Apodex 1.1 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Step 5 Preview leads overall 72 to 51.76.
- The clearest category separation is in multimodal & grounded, where the averages are 76.7 for Apodex 1.1 and 61.2 for Step 5 Preview.
- The biggest single benchmark swing is Terminal-Bench 2.1 in Agentic, with scores of 70.8% and 85.0%.
- Apodex 1.1 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Step 5 Preview also has the larger context window at 1M.

## Model Snapshot

| Property | Apodex 1.1 | Step 5 Preview |
|----------|----------|----------|
| Creator | Apodex | StepFun |
| Type | Proprietary | Pending |
| Reasoning | Reasoning | Reasoning |
| Context | N/A | 1M |
| Overall Score | 51.76 | null |
| Benchmarks Covered | 10 | 22 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $1.00 / $2.70 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Apodex 1.1 public-lane score: 53.3 (Estimated · #41/154)
- Step 5 Preview public-lane score: Coming soon

| Benchmark | Apodex 1.1 | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 70.8% | 85.0% | Step 5 Preview |
| HLE w/ tools | 56.1% | Coming soon | Coming soon |
| APEX-Agents | 38.5% | 37.8% | Apodex 1.1 |
| DeepSearchQA | 92.4% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | Coming soon | 33.30% | Coming soon |
| CyberGym | Coming soon | 84.7% | Coming soon |
| AutomationBench | Coming soon | 44.0% | Coming soon |
| Toolathlon-Verified | Coming soon | 74.1% | Coming soon |
| MCP Atlas | Coming soon | 85.6% | Coming soon |
| JobBench | Coming soon | 59.0% | Coming soon |
| DRACO | Coming soon | 83.3% | Coming soon |
| BrowseComp | Coming soon | 88.7% | Coming soon |
| Agents' Last Exam | Coming soon | 29.5% | Coming soon |

### Coding

- Winner: Coming soon
- Apodex 1.1 public-lane score: 52.9 (Estimated · #48/156)
- Step 5 Preview public-lane score: Coming soon

| Benchmark | Apodex 1.1 | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 70.8% | 85.0% | Step 5 Preview |
| SWE-bench Verified | 77.7% | Coming soon | Coming soon |
| DeepSWE | Coming soon | 67.7% | Coming soon |
| SciCode | Coming soon | 58.9% | Coming soon |
| ProgramBench | Coming soon | 80.5% | Coming soon |
| sweMarathon | Coming soon | 72.7% | Coming soon |
| MLS-Bench Lite | Coming soon | 40.5% | Coming soon |

### Reasoning

- Winner: Coming soon
- Apodex 1.1 public-lane score: 75.5 (Unranked · 2 rankable rows)
- Step 5 Preview public-lane score: 78.5 (Unranked · 2 rankable rows)

| Benchmark | Apodex 1.1 | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| CritPt | Coming soon | 20.9% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Apodex 1.1 public-lane score: 76.7 (Unranked · 1 rankable row)
- Step 5 Preview public-lane score: 61.2 (#28/49)

| Benchmark | Apodex 1.1 | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | Coming soon | 60.3% | Coming soon |
| MMMU-Pro | Coming soon | 76% | Coming soon |

### Knowledge

- Winner: Coming soon
- Apodex 1.1 public-lane score: 54.8 (Supported · #55/186)
- Step 5 Preview public-lane score: Coming soon

| Benchmark | Apodex 1.1 | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| HLE | 56.1% | 46.5% | Apodex 1.1 |
| FrontierScience Research | 63.3% | Coming soon | Coming soon |
| BioMysteryBench (human-difficult) | 35.3% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 93.5% | Coming soon |

### Mathematics

- Winner: Coming soon
- Apodex 1.1 public-lane score: Coming soon
- Step 5 Preview public-lane score: Coming soon

| Benchmark | Apodex 1.1 | Step 5 Preview | Winner |
|-----------|-----------|-----------|--------|
| IMO 2026 | 31/42 | Coming soon | Coming soon |

## FAQ

### Which is better overall, Apodex 1.1 or Step 5 Preview?

Step 5 Preview is ahead overall on BenchLM right now.

### Where is the biggest gap between Apodex 1.1 and Step 5 Preview?

The widest category gap is in multimodal & grounded, where the averages are 76.7 for Apodex 1.1 and 61.2 for Step 5 Preview.

### How many benchmarks does Apodex 1.1 cover on BenchLM?

Apodex 1.1 currently has 10 sourced benchmark scores on BenchLM.

### How many benchmarks does Step 5 Preview cover on BenchLM?

Step 5 Preview currently has 22 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Apodex 1.1 vs Apodex 1.1 Mini](/compare/apodex-1-1-vs-apodex-1-1-mini)
- [Step 5 Preview vs Apodex 1.1 Mini](/compare/apodex-1-1-mini-vs-step-5-preview)
- [Apodex 1.1 vs Claude Fable 5.1](/compare/apodex-1-1-vs-claude-fable-5-1)
- [Step 5 Preview vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-step-5-preview)

## Explore More

- [Apodex 1.1 profile](/models/apodex-1-1)
- [Step 5 Preview profile](/models/step-5-preview)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)